Summary

Tanaka Manabu is a geeky student, on the way to school he meets a girl carrying a bloody bat. That girl is Ryuuzaki Reina, leader of the school's female delinquents. It's love at first sight. A gag manga (with a combination of 4koma and normal page) about having a yankee dere-dere girlfriend.

NOTE: in the title of this series, "yandere" isn't refering to this term, but to the "yankee"+"dere-dere" combination.